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Study Finds Overlap Between Teenage Chronic Fatigue Syndrome, Depression, and Anxiety

A study by Maria Loades at the University of Bath and her colleagues confirmed that around one-third of adolescents with teenage Chronic Fatigue Syndrome (CFS) also have depression and/or anxiety. 

What is the study about?

The symptoms of CFS overlap with the symptoms of depression and anxiety. For example, fatigue is a symptom of both CFS and depression, and restlessness can be a symptom of CFS and also of anxiety. Pen-and-paper questionnaires, which are often used to screen for depression and anxiety, include some of these overlapping symptoms. Previous research looking at how many teenagers with CFS also have depression and/or anxiety has tended to rely on these questionnaires, and therefore, may not have been accurate in their estimates of how prevalent these mental health conditions are in this group. This study recruited all the teenagers with CFS who were referred and consented to 2 specialist CFS units in London. It used a brief psychiatric interview to determine how many teenagers fulfilled the diagnostic criteria for depressive disorders and anxiety disorders. The study participants also filled in questionnaires, and the results of these were compared to those of the psychiatric interview to see if the questionnaires were useful in spotting those who were depressed or anxious from those who were not.

What would be the important take-home messages of this study?

Around one in three teenagers with CFS also had depression, and around one in three teenagers with CFS also had an anxiety disorder. This is much higher than in otherwise healthy teenagers and is also higher than in teenagers with other physical illnesses. Some teens (around 15%) had both depression and an anxiety disorder. Those who had depression were also significantly more impaired on school and social functioning. The Children’s Depression Inventory (CDI) questionnaire seemed to be a useful adjunct to a clinical interview in identifying depression, but the State-Trait Anxiety Inventory (STAI) was not particularly precise at identifying anxiety in this patient group.

How are these findings important in practice?

These findings confirm that teenagers with CFS are more likely to also develop depression and/or anxiety. Healthcare professionals working with this patient group need to be mindful of this and to look out for symptoms of these mental health problems presenting alongside the CFS. It may be that having depression and/or anxiety gets in the way of teenagers getting better from CFS by affecting their ability to do what would help them to recover. These findings also illustrate how pen-and-paper questionnaires to identify symptoms of depression and/or anxiety may need to be used with caution in this patient group.

What other studies can be recommended to further an understanding/application of these findings?

It will be important to understand the impact that having depression and/or anxiety has on recovery from CFS. Understanding what the risk factors are for developing depression and/or anxiety alongside CFS would help us to identify teens who may benefit from preventative or early intervention approaches. We need to conduct treatment trials to understand how best to help those teenagers who have anxiety and/or depression as well as CFS to recover as quickly as possible.

About Maria Loades, Clinical Tutor, University of Bath

Alternative Text

Dr Maria Loades is a Clinical Tutor for the Doctorate in Clinical Psychology programme. Maria qualified as a Clinical Psychologist from the University of East Anglia in 2008. Since qualification, she has worked a variety of mental health settings, including adult mental health, a children’s inpatient unit, and various community Child and Adolescent Mental Health Services (CAMHS). She completed a post-graduate diploma in cognitive behaviour therapy (CBT) for children, young people and families at the Anna Freud Centre/University College London in 2013, and a Postgraduate Certificate in the Supervision of Applied Psychology Practice at the University of Oxford in 2015. She is an accredited Cognitive Behavioural Psychotherapist, Supervisor, and Trainer with the British Association for Behavioural and Cognitive Psychotherapists (BABCP) and is also registered with the Health and Care Professionals Council.

Maria Loades on the Web
More on: Anxiety, Depression, Parenting, Research
Latest update: January 17, 2018